Harmon Air Force Base is a former World War II United States Army Air Forces airfield, and postwar United States Air Force Base on Guam in the Mariana Islands. Originally named "Depot Field", it was renamed in honor of Lieutenant General Millard F. Harmon, who disappeared on 26 February 1945 on a flight from Kwajalein to Hawaii. Despite the most intensive search by Army and Navy planes and surface vessels, no trace of the plane was ever found.